• Why seals don’t drown, and tracking bird poop as it enters the sea

  • 2025/03/20
  • 再生時間： 39 分
  • ポッドキャスト

Why seals don’t drown, and tracking bird poop as it enters the sea

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  • First up this week, Newsletter Editor Christie Wilcox joins host Sarah Crespi to discuss stories from the sea, including why scientists mounted cameras on seabirds, backward and upside-down; newly discovered organisms from the world’s deepest spot, the Mariana Trench; and how extremely venomous, blue-lined octopus males use their toxin on females in order to mate. Read more or subscribe at science.org/scienceadviser. Next on the show, J. Chris McKnight, a senior research fellow in the Sea Mammal Research Unit at the University of St. Andrews, talks about testing free-living seals to see how they respond to different carbon dioxide or oxygen levels in the air. It turns out they don’t respond like other mammals, which go into panic under high carbon dioxide; instead, seals appear to directly detect oxygen, a safer bet when your life is mostly spent diving deep underwater. This week’s episode was produced with help from Podigy. About the Science Podcast Authors: Sarah Crespi; Christie Wilcox Learn more about your ad choices. Visit megaphone.fm/adchoices
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First up this week, Newsletter Editor Christie Wilcox joins host Sarah Crespi to discuss stories from the sea, including why scientists mounted cameras on seabirds, backward and upside-down; newly discovered organisms from the world’s deepest spot, the Mariana Trench; and how extremely venomous, blue-lined octopus males use their toxin on females in order to mate. Read more or subscribe at science.org/scienceadviser. Next on the show, J. Chris McKnight, a senior research fellow in the Sea Mammal Research Unit at the University of St. Andrews, talks about testing free-living seals to see how they respond to different carbon dioxide or oxygen levels in the air. It turns out they don’t respond like other mammals, which go into panic under high carbon dioxide; instead, seals appear to directly detect oxygen, a safer bet when your life is mostly spent diving deep underwater. This week’s episode was produced with help from Podigy. About the Science Podcast Authors: Sarah Crespi; Christie Wilcox Learn more about your ad choices. Visit megaphone.fm/adchoices
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